Grain-cleaner



(No Model.) 2 Sheets-Sheet 1.

L. O. 8v L. E. STEVENS.

GRAIN CLEANER. No. 320,013.

Patented Jung 16, 1885.

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H. PETERS, Fhummhcgnphor, washlngm D. C.

(No Model.) 2 sheetsSheet' 2.

L. 0. & L. E. STEVENS.

GRAIN CLEANER.

No. 320,013. Patented June 16, 1885.

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UNITED STATES PATENT OFFICE.

LUGIOUS O. STEVENS AND LELLIE E. STEVENS, OF BURLINGTON, IOWA.

GRAIN-CLEANER.

SPECIFICATION forming part of Letters Patent No. 320,013, dated June 16, 1885.

Application filed August 2l, 1884. (No model.)

To all whom it may concern:

Be itknown that we, LUoIoUs O. STEvENs and LELLIE E.STEvENs,both citizens of the United States, residing at Burlington, in the county of Des Moines and State of Iowa,have invented a new and useful Improvement' in Grain- Oleaners, of which the following is a specication.

Our invention relates toV improvements in grain-cleaners in which a set of brushes operate in conjunction with revolving disks having conical-shaped indentations; and the object of our invention is to furnish a graincleaner in which the grain will stand endwise, and be thus more thoroughly cleaned. We attain these objects by the mechanism illustrated in the accompanying drawings, inl

which- Figure l is a vertical sectional elevation of our improved grain-scourer. Fig. 2 is a plan of one of the revolving disks, showingl the conical-shaped indentations and the intermediate furrows.

Similar letters refer to similar parts throughout the several views.

In the drawings, A is the frame or box containing the mechanism, and is made of wood or any other suitable material. a is a shaft running from top to bottom through the iniddle of the box A, and having pulley a', by means of which it is set in motion by belt or otherwise.` Shaft a is hollow from the top to point b, and has at its top the funnel-shaped opening b. v

B is a brush,having its bristles turned downward, and having in its center the covered feedhopper c,through which shaft a passes. That part of shaft a within the feed-hopper has a number of perforations, f f, from which the grain is discharged.

Beneath brush B,and fastened to shaft a, is disk D, which will revolve with the shaft. Disk D has at its center, fitting snugly around shaft c, the distributing-cone d. Disk D also has conical-shaped indentations running from the center to the circumference for the reception of the grain, each indentation being large enough to hold from one to two grains. Be-

low disk D,and attached to the sides of box A, are the inclined projections e and e.

E is a brush,also firmly attached to box A, and having in its center the open feed-hopper c', through which shaft a passes. Fromthe sides of box A, at a point below projections e and e, are the inclines g and g,leading into the hopper c. The bristles of brush E also polnt downward. Below brush E, and fastened to shaft a by means of slot and key,is the revolving disk D', having distributing-cone d', and also having conical indentations of the same shape as disk D. Below disk D', running from i' to r', is the incline B.

H is a bridge-tree having tram-pot h, 1n which hub h of disk D is stepped. Bridge-tree H also has lighter-screw O, for the purpose of adjusting the disk D to the brush.

H is a bridge-tree having tram-pot h, vin I which shaft a is stepped. Bridge-tree H also has a lighter-screw, O', for the purpose of adjustingdisk D to the brush. The object of fastening disk D to the shaft by means of slot and key is to be able toadjust the disk to the brush independent of the adjustment of dlsk D.

The disks D and D have,in addition to the conical indentations,furrows running from the center to the circumference, as indicated in Fig. 2. a; and w are the vanes of a fan, firmly fastened to shaft a, for the purpose of creating a draft. y y are perforations in the frame A. P is a tube,into which the grain is discharged from incline R by means of a spout through box A, and S is a screen, and W is an opening in box A. A around the fan,havng openings for the purpose of producing the draft. A

The operation of our invention is as follows: When the shaft c is set in motion by means of pulley a', the grain is poured into funnel b', and from there, through perforations f ff, is scattered upon rotating disk D, where, by means of the furrows, it is distributed into the conical-shaped indentations and stands endwise therein. Brush B cleans the grain and sweeps it 0E upon the inclines e and e. The grain in dropping from projections e e upon inclines g g is subjected to a draft coming from perforations y and e, and passing from there to the fan. This draft will carry with .it any light foreign substances in the grain. From inclines gg the grain passes into hopper c and upon disk D', where it is subjected to another process of cleansing by means of brush E. From disk D the grain drops upon ineline B, andV runs from there into tube P.

t and t are partitions in box.

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Here it is again subjected to a draft which will carry light foreign substances up along the tube to screen S, Where the foreign subl stances are discharged through opening W.

It is evident that We need not confine ourselves to two sets of disks, but that the operation may be repeated through as many disks as might be deemed necessary.

What we claim as our invention, and desire to secure by Letters Patent, is-

1. A machine for cleaning grain, comprising the revolving shaft a, the rotating disk D,hav ing conieal-shaped indentations, distributingcone d, and a stationary brush, B, having eovered feed-hopper c, substantially as and for z5 V 

